spiffygirl, for most office workers, usually busy with work, may not have much time to learn to charge, the only time a day may be the last time to get off work on the effort.
If you want to learn English, then the full use of the time to work every day you can improve their English ability.
There are a lot of good English software can be downloaded to the phone to use, download, you can always learn English, whether in the bus or on the subway.
Open the English software, at any time to open their own learning mode.
Some professional English software in use when the intelligence is very strong, there will be a good memory function, for example, what you learned the day before the software will automatically record you.
So you can plan to arrange their own learning rhythm.